目录

• 1 relative skills
  • 1.1 linux批量替换目录下所有文件中的某字符串
  • 1.2 批量更改目录下所有文件名(如修改后缀名)
• 2 steps
  • 2.1 substitute folder names: chapter to ch
  • 2.2 substitute folder names: Chapter to Ch
  • 2.3 substitute file names: Chapter to Ch
  • 2.4 substitute file names: chapter to ch
  • 2.5 this 3 git metadata files shoule not be substituted
  • 2.6 open idea to check whether there are other problems
  • 2.7 if there is no problem, submit the code with 'git commit'

1 relative skills

1.1 linux批量替换目录下所有文件中的某字符串

1. method1: 比如，要将目录/modules下面所有文件中的zhangsan都修改成lisi，这样做：
   sed -i "s/zhangsan/lisi/g" `grep zhangsan -rl /modules`

解释一下：
-i 表示inplace edit，就地修改文件
-r 表示搜索子目录
-l 表示仅输出匹配的文件名，不输出匹配到的那一行的具体内容

2. method2: linux shell 字符串中指定字符替换
   echo ${"abc1234bb1234"/23/bb} //abc1bb42341 替换一次
   echo ${string//23/bb} //abc1bb4bb41 双斜杠替换所有匹配
   echo ${string/#abc/bb} //bb12342341 #以什么开头来匹配，根php中的^有点像
   echo ${string/%41/bb} //abc123423bb %以什么结尾来匹配，根php中的$有点像

1.2 批量更改目录下所有文件名(如修改后缀名)

1. method1: 命令格式： rename 's/.csv/.txt/' *
   我想把当前目录下所有的txt文件都修改为后缀为csv，如果一个一个的修改，很耗费时间，效率低，只要执行这个命令，一下就搞定。

2. method2: for i in 3_*; do mv $i $i".txt"; done
   利用for循环，遍历所有有特定特征的文件，然后给其重命名。

2 steps

2.1 substitute folder names: chapter to ch

1. target folders:
   /d/develop/ideaws/parentProject/chapter*
   find /d/develop/ideaws/parentProject/ -name *chapter*
   (actually, folders whose name contains chapter only exists in /d/develop/ideaws/parentProject/chapter*, so we don't need to handle find /d/develop/ideaws/parentProject/ -name *chapter* )

2. monitor the effect in advance
   for i in /d/develop/ideaws/parentProject/*; do echo ${i/chapter/ch}; done

3. substitute
   for i in /d/develop/ideaws/parentProject/*; do mv $i ${i/chapter/ch}; done

4. verfiy the result
   ll /d/develop/ideaws/parentProject/

2.2 substitute folder names: Chapter to Ch

1. target folders:
   find /d/develop/ideaws/parentProject/ -name *Chapter*
2. monitor the effect in advance
   for i in `find /d/develop/ideaws/parentProject/ -name *Chapter*`; do echo ${i/Chapter/Ch}; done
3. substitute
   for i in `find /d/develop/ideaws/parentProject/ -name *Chapter*`; do mv $i ${i/Chapter/Ch}; done
4. verfiy the result
   find /d/develop/ideaws/parentProject/ -name *Chapter*
   find /d/develop/ideaws/parentProject/ -name *Ch*

2.3 substitute file names: Chapter to Ch

1. target files:
   grep Chapter -rl /d/develop/ideaws/parentProject/

2. substitute
   sed -i "s/Chapter/Ch/g" `grep Chapter -rl /d/develop/ideaws/parentProject/`

3. verfiy the result
   grep Chapter -rl /d/develop/ideaws/parentProject/

2.4 substitute file names: chapter to ch

1. target files:
   grep chapter -rl /d/develop/ideaws/parentProject/

2. substitute
   sed -i "s/chapter/ch/g" `grep chapter -rl /d/develop/ideaws/parentProject/`

3. verfiy the result
   grep chapter -rl /d/develop/ideaws/parentProject/

2.5 this 3 git metadata files shoule not be substituted

/d/develop/ideaws/parentProject/.git/index
/d/develop/ideaws/parentProject/.git/logs/HEAD
/d/develop/ideaws/parentProject/.git/logs/refs/heads/main

1. method1: use old git files to replace the new files which are substituted.
   cp /d/develop/ideaws/parentProject/.git/index /d/develop/ideaws/parentProject/.git/
   cp /d/develop/ideaws/parentProject/.git/logs/HEAD /d/develop/ideaws/parentProject/.git/logs/HEAD
   cp /d/develop/ideaws/parentProject/.git/logs/refs/heads/main /d/develop/ideaws/parentProject/.git/logs/refs/heads/main

2. method2:
   firstly move the .git/ folder to other path. after all steps complete, move back the .git/

2.6 open idea to check whether there are other problems

2.7 if there is no problem, submit the code with 'git commit'